Yua is a teacher at a school, she is also at the age of getting married so her mother always insists that she go for an eye check-up. Although she doesn't like it, she can only agree to temporarily avoid her mother's nagging. Surprisingly, she meets Yuki sitting alone and crying, she approaches to ask but he gently avoids her and leaves. In the following days, she notices Yuki being more depressed than usual, during lunchtime he remains seated in the classroom so Yua continues to approach him to talk. It turns out that Yuki's parents have just divorced, although he knew their relationship was not good and was mentally prepared, Yuki still couldn't avoid being hurt. Today Yuki has no money so Yua invites him to have lunch with her. Of course, she cannot openly buy food for Yuki. They both buy two meals and then sit together in an empty room to eat and talk. From that moment on, they always have lunch together, chat, and joke. But one day, the person that Yua's mother arranged for her to go for an eye check-up with comes to pick her up at her house, Yuki also accidentally sees her getting into another man's car. Knowing that she is not as good as the other person, and not having a chance, Yuki decides to give up, they should not have lunch together anymore.SSIS-241 Teacher Yua Mikami and her pitiful student Yua tries to hold on to Yuki, in a moment of lack of control, she kisses him. Knowing that what she just did was not right, Yua leaves embarrassed. But from that moment on, Yua realizes her true feelings, she loves Yuki, her student. Even though she knows this is wrong, she cannot deceive her own heart. The next day, when everyone has returned, she calls Yuki to the empty room and confesses her feelings to him. In return, Yuki also confesses that he likes her but their relationship is forbidden. Yua doesn't care, she only knows she likes Yuki, she wants to give him everything she has, she wants to be one with the one she loves. Although the path ahead will be very difficult, with many challenges that will force them to choose between giving up or continuing. But in the end, for love, they accept the difficult path and let go of everything to be together...
